Vibration of a cylinderical solid body due to fluidic vortex.

Hi there,

I'm new to COMSOL and trying to model a fluid flow across cylindrical shaped solid bodies in 2D. The model should produce a vibrating (varying the displacement) cylindrical body with the vortex shedding due to fluid-structure interaction (FSI). I tried to model and simulate a similar procedure as the one provided in the application examples, however, the output is not properly produced. The output shows the outer boundaries (outer layer) is moving up and down but the cylinder (circular shaped geometry) is fixed within the mesh.


I would appreciate it if anyone could help on this.



Regards,
Mohammed